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2 Sheets-Sheet 1.

(No Model.)

R. L. VALENTINE. PORTABLE DERRIGK.

No. 337,462. Patented Mar. 9, 1886.-

N. PETERS. PhollrL-flhcgnphen Wuhingiun. D. C.

' 2 SheetsSheet 2. R. L. VALENTINE.

PORTABLE DERRICK.

Patented Manx-9, 1886.

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767% d: y Afforney N was Pholo-Uihugraphnr, Wnhinghm. no

UNTTED STATES PATENT O rTcE.

RICHARD L. VALENTINE, OF BROOKLYN, NEW YORK, ASSIGNOR TO JOHN V. VAN DYKE.

PORTABLE DERRICK.

SPECIFICATION forming part of Letters Patent No. 337,462, dated March 9. 1886.

(No model.)

To all whom it may concern Be it known that I, RICHARD L. VALEN- TINE, a citizen of the United States, and a resident of the city of Brooklyn, in the county of Kings and State of New York, have invented a new and useful Improvement in Port able Derricks, of which the following is a specification; and I do hereby declare that the same has not, to my knowledge and belief, been in public use or on sale in the United States for more than two years prior to this application.

My said improvement consists of the parts and various combinations of parts hereinafter l 5 described and claimed.

The object of my said invention is to build a derrick which shall be simple in construction, be more easily moved and operated, and

produce better results at a less cost, than any darrick heretofore made for like uses and purposes.

My said invention and improvement has reference and application to the construction and operation of portable derricks for use in the removal of earth, sand, clay, or stone from large or deep ditches or excavations, the building or rebuilding of sewers, the laying or relaying of gas, water, oil, steam, or sewer pipe, the introduction to or removal from such ditches, sewers, or excavations of the materials necessary to be used in the construction of such sewers, the loading or unloading of railroad-cars, vessels, lighters, or scows, and the filling of docks or cribs from vessels or scows. I attain these objects by the mechanism illustrated in the accompanying drawings, in Which Figure 1 is a perspective view of the entire derrick and its platform, the dotted lines thereon showing a second mast and its attachments, which may be placed on any of the other three corners of the platform of the derrick. Figs. 2, 3, and 4 are views in elevation of the mast and gaff and the several constructions and applications of the sheaves and other attachments thereto. Fig. 5 is a side view of one of the wheels upon which the derrickplatform runs when moved from place to place, and Fig. 9 is an end view of the same. Fig. 6 isa side elevation'of the sheaveholder or block permanently attached to the lower end of the gafi, as shown in Figs. 1 and 2. Fig. 7 is a plan view of the same. Fig. 8 is a side view in elevation ofa combined pivotal gaff-support and sheave holder or block, as shown in Fig. 4..

Similarletters indicate corresponding parts in theseveral figures.

Referring to the drawings, A is the platform of the derrick.

B is a hoisting machine placed in any desired position on the derrick-platform A.

O is a stationary mast placed upon any one of the corners of the (lerriclcplatform A, as shown in Fig. 1. I

D is a slot in said mast O, to receive,and in 6 which is permanently secured, a sheave, E, and through which the hoisting-rope M passes. This sheave E may be placed below the gaff, as shown in Fig. 1, or above the gaff, as shown in Figs. 2, 3, and 4.

F F F are the braces which supportthe mast O on the derrick-platform A,as shown in Fig l.

G is the H is the support to the outer end of the gaff G, the inner end of which support H is attached to the top of the mast G by the eye I, and its outer end is attached to the outer end of the gaff G at J, as shown in Figs. 1, 2, 3, and 4.

K K K K are wheels upon which the der- 8; rick-platform runs. I L is asheave suspended from the outer end of the gaff G, as shown in Figs. 1 and 3, or inserted in the gaff G, as shown in Figs. 2 and 4.

M is a hoisting-rope.

N N are bands around the mast O, by means of which and the pin 0 the gaff G is attached to the mast 0, said pin 0 forming a pivot upon which the gafi G swings, as shown in Figs. 1 and 2.

P is an extended sheave-holder or block, which permanently attaches the sheave Q to the lower side of the gaff G, as shown in Fig.

1, or to the upper side of the gaff G, as shown in Fig. 2.

Q is a sheave, which may be placed below the gaff G in the extended sheave-holder or block P, as shown in Fig. 1, or above the gaff G in the extended sheave-holder or block P, rco as shown in Fig. 2, or inserted in a slot, S, in the lower end of the gaff G, as shown in Fig.

3, or in the combined pivotal gaff-support and sheave-holder or block R, as shown in Fig. 4.

R is a combined pivotal gaffsupport and sheave-holder or block, which supports and holds the lower end of the gai'f G and holds the sheave Q, and upon which support the gaffG swings. Said support is attached and secured to the derrick-platform A in front of the mast U, as shown in Fig. 4.

T is a pivotal support for the gaff G, upon which the gaifGswings, and which is attached and secured to the derrick-platform A in front ot'the mast C, as shown Fig.

U is the tread of the wheels K KI K when the same are used upon rails. Vis the flange of said wheels. V becomes the tread of said wheels when the same are not used upon rails. \V in Fig. 8 is the pivot of the combined pivotal gaff-support and sheave-holder or block R. (Shown in Fig. 4.) X in Fig. 8 is the sheave-holder or block thereof, and Y is the gaff-support thereof.

Z in Fig. 1 is a hook by which the weight or object is lifted, attached to the hoistingrope M, as shown.

In operation the hoisting-rope M passes from the hook Z. to which the weight or object to be lifted is attached, over the sheave L and under the gaff G, as shown in Figs. 1 and 3, or above the gait G, as shown in Figs. 2 and 4. to thesheave Q, passing over the sheave Q, as shown in Fig.1, or under the sheave Q, as shown in Figs. 2, 3, and 4, from thence to and under the sheave E, as shown in Fig. l, or to and over the sheave E, as shown in Figs. 2, 3, and 4, and thence through the slot D in the mast O to the hoisting-machine B. (Shown in Fig. 1.)

In construction I prefer to use as wheels under the derrick-platform A such as are described and shown, but any suitable wheels may be used. The outer end of the gaff G may be supported either as shown in Figs. 1, 2, 3, and 4, or by a block and fall from the eye at the top of the mast C to the outer end of the gaff G at J, and fastened to the gaffG by acleat. The eye I, the sheaves E and Q, and the pin or pivot O, as shown in Figs. 1 and 2, or the eye I, the sheaves E and Q, and pivot T. as shown in Fig. 3, or the eye I, sheaves E and Q, and pivot \V, as shown in Fig. 4, must be so placed, respectively, that the hoisting-rope M, when between the sheaves E and Q, shall be in a straight line with the eye I and pin or pivot O, as in Figs. 1 and 2, or the eye I and pivot T, as in Fig. 3, or the eye I and pivot W, as in Fig. 4. By such a construction the lower end of the gaff G will turn or swing on the pin or pivot O, as shown in Figs. 1 and 2, or on the pivot T, as shown in Fig. 3, or on the pivot \V, as shown in Fig. 4. The support II will turn or swing in the eye I, and the hoisting-rope M, between the sheaves E andQnvill turn in the same direction without leaving the line with the eye I and the pivot at the lower end of the gaff G, all moving or turning as upon one center, hinge, or pivot. The gaffGwill then swing easily, and

injury to the hoisting-rope M by its friction upon the sheaves E and Q willbe prevented.

By having the sheave Q attached to thelower end of the gaff G by the extended block P, as shown in Figs. 1 and 2, or having said sheave Q inserted in and fastened to the lower end of the gaii? G, as shown in Fig. 3, or having said sheave Q attached to the lower end of the gaff G by the holder R, as shown in Fig. 4, and having the hoisting-rope M pass irom the sheave L over the sheave Q to the sheave E, as shown in Fig. 1, or under the sheave Q to the sheave E, as shown in Figs. land 2, greatly relieves the lateral pressure of the lower end of the gait G against the mast O, and the pin or pivot O, as shown in Figs. 1 and 2, and the friction upon the pin or pivot O, and permits the gaff G to swing easily; or having the hoisting-rope M pass from the sheave L under the sheave Q to the sheave E, as shown in Fig. 3 or Fig. 4, greatly relieves the lateral pressure of the lower end of the gaff G upon the pivot T, as shown in Fig. 3, or upon the pivot W, as shown in Fig. 4, thus lessening the friction upon said pivots T or W and permitting the gaff G to swing easily.

The sheave E may be placed in any part of the mast 0, either above or below the gaff G, as desired.

By placing another mast, C, on the corner of the derrick-platform, as shown by the dotted lines in Fig. 1,two gafi's may be used at one and the same time, and where the derrick-platform is run upon portable railssnch rails maybe taken up and removed from behind the derrickplatform and placed in front of the same by means of said gafis.

By placing the mast O on the corner of the derrick-platform A the same length of gaff will reach a distance equal to one'half the width of the derrick-platform farther fro m the ditch or excavation where said derrick is being used than any portable derrick heretofore made will reach, and permits the gaff G to have a much greater reach and swing, and permits of such gatt' G being swung as well on the side as in front or in rear of the derrick-platform. It also enables the mast G to be secured to the derrick-platform at much less expense of construction than if the same is placed anywhere else on the derrick-platform.

Having thus described my invention, what I claim as my invention, and desire to secure by Letters Patent, is-

1. In a portable derrick, the combination of a stationary mast, G, (having therein aslot, D,) an eye, I, and sheaves E and Q, with a pin or pivot, O, the said eye, pin, and sheaves being so placed, respectively, that a hoisting-rope, M, between the sheaves E and Q is in a straight line with the eye I and pin or pivot O, as and for the purpose described and shown.

2. In a portable derrick, the combination of a stationary mast, 0, (having therein a slot, D,) an eye, I, and sheaves E and Q, with a pivot, T, the said eye, pivot, and sheaves being so placed, respectively, that a hoisting-rope, M, between the sheaves E and Q is in a straight line with the eye I and pivot T, as and for the purpose described and shown.

5 3. In a portable derrick, the combination of a stationary mast, 0, (having therein a slot, D,) an eye, I, and sheaves E and Q, with apivot, W, the said eye, pivot, and sheaves being so placed, respectively, that a hoisting-rope, M,

'10 between the sheaves E and Q is in a straight line with the eye I and pivot W, as and forthe purpose described and shown.

4. In aportable derrick,an extended sheaveholder or block, P, attached permanently to r 5 the lower end of a gaff, G, as and for the purpose described and shown.

5. In a portable derrick, the wheelsK K K K, having the tread U, and the flange V, as and for the purpose described and shown.

6. Thecombination,inaportablederrick, of 20 a sheave, E, permanently fixed in a slot in the mast, a sheave, Q, attached to or fixed in the lower end of the gaff, a sheave, L, insertedin or suspended from the outer end of the gaff, and the hoisting-rope M, as and for the purposes described and shown.

7. In a portable derrick, a mast, O, permanently attached to the platform of the derrick at one of the corners thereof, as and for the purpose described and shown.

RICHARD L. VALENTINE.

Witnesses:

F. W. HANAFORD, FRANKLIN T. HELLER. 

